SA-516-70 and SA515 GR 70 are both grades of steel used in pressure vessel applications, but there are some key differences between them:
Material properties:
SA-516-70 is a carbon steel plate specification for moderate and lower temperature service.
SA515 GR 70 is a carbon-silicon steel plate designed for intermediate or higher temperature service.
Maximum thickness:
SA-516-70 has a maximum thickness of 204mm, while SA515 GR 70 has a maximum thickness of 50mm.
Tensile strength:
SA-516-70 typically has higher tensile strength compared to SA515 GR 70.
Applications:
SA-516-70 is commonly used for pressure vessels where moderate and lower temperature service is required.
SA515 GR 70 is used for intermediate and higher temperature service applications.
ASME standards:
Both materials adhere to specific ASME standards for pressure vessel applications.
When choosing between these two materials, it's important to consider the specific requirements of the application in terms of temperature, pressure, and other mechanical properties to select the most suitable material.
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